WMSIC Electronic Components

TWGMC SMF10CA Bidirectional TVS Diode SMF10CA

ModelSMF10CA
PackageSOD-123FL
BrandTWGMC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TWGMC SMF10CA
Type
TWGMC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
SMF10CA
Electronic Component
1
Package
SOD-123FL
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.046g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0265826637
Operating Temperature
55℃~+150℃
Voltage
17V
Current(Ir)
2.5uA
Voltage(VBR)
12.3V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMF10CA 瞬态抑制二极管(TVS)产品概述

SMF10CA是台湾迪嘉(TWGMC)推出的双向单通道瞬态抑制二极管(TVS),采用SOD-123FL小型表面贴装封装,专为10V等级低压电路的瞬态过压防护设计,兼顾高防护能力与紧凑尺寸,适配高密度PCB布局场景,广泛应用于消费电子、工业控制、通信等领域。

一、产品定位与核心属性

SMF10CA属于低压通用型TVS,核心定位是为10V左右的直流/交流电路提供瞬态过压防护,应对静电放电(ESD)、电快速瞬变脉冲群(EFT)、开关浪涌等瞬态干扰。其核心属性包括:

  • 双向极性:无需区分正负极,布线灵活且降低设计错误风险;
  • 单通道集成:体积紧凑,适合多通道防护的高密度PCB;
  • 宽温工作:覆盖-55℃至+150℃,适配严苛环境下的长期稳定运行。

二、关键电气参数详解

SMF10CA的电气参数精准匹配低压电路防护需求,核心参数的实际意义如下:

  1. 反向截止电压(Vrwm):10V
    电路正常工作时,TVS可承受的最大反向直流电压,此时TVS处于截止状态,无明显导通电流,不影响电路正常功能。
  2. 击穿电压(Vbr):12.3V
    当反向电压超过12.3V时,TVS进入雪崩击穿状态,快速导通以钳位电压,是瞬态防护的触发阈值。
  3. 钳位电压(Vc):17V
    在10/1000μs标准脉冲波形下,当峰值脉冲电流(Ipp)达到11.8A时,TVS两端的电压被钳位至17V以内,确保被保护电路的电压不超过其耐受极限。
  4. 峰值脉冲电流(Ipp):11.8A@10/1000μs
    特定脉冲波形下,TVS可承受的最大峰值电流,体现其抗大电流冲击的能力;若脉冲波形不同(如8/20μs),防护能力会有相应调整,但10/1000μs参数已覆盖多数工业/消费场景的干扰类型。
  5. 峰值脉冲功率(Ppp):200W@10/1000μs
    对应脉冲的峰值功率,直接反映TVS的防护能量上限,200W功率可有效应对常见的瞬态干扰(如电源开关浪涌、雷击感应脉冲)。
  6. 反向漏电流(Ir):2.5μA
    在Vrwm=10V下的反向漏电流,数值极小,不会对电路的静态功耗产生明显影响,确保电路正常工作时的低功耗特性。

三、封装与可靠性设计

SMF10CA采用SOD-123FL封装,该封装具有以下优势:

  • 小型化:尺寸仅约2.0mm×1.25mm×1.0mm(典型值),适合智能手机、可穿戴设备等对空间要求极高的产品;
  • 表面贴装:兼容自动化贴片生产线,提高生产效率,降低人工成本;
  • 热可靠性:封装的散热路径设计合理,结合150℃的最高工作温度,可有效散出脉冲能量带来的瞬时热量,避免器件过热损坏;
  • 机械强度:封装采用耐高温塑料,可承受焊接温度(如回流焊)及机械冲击,适配恶劣环境下的长期使用。

四、典型应用场景

SMF10CA的参数特性使其适配多种低压电路的防护需求,典型应用包括:

  1. 消费电子接口:手机、平板、笔记本电脑的USB充电口、数据接口,防护ESD及充电浪涌;
  2. 工业控制节点:PLC输入输出端口、传感器(如温度、压力传感器)的信号线路,应对现场开关浪涌、雷击感应干扰;
  3. 通信设备接口:路由器、交换机的以太网接口、射频接口,防护EFT及静电放电;
  4. 车载低压电路:汽车仪表盘、中控屏的辅助供电电路(12V系统下的低压分支),适配宽温环境下的瞬态防护;
  5. 小型电源模块:5V/9V/10V输出的DC-DC电源模块,防止输出端过压损坏负载器件。

五、品牌与质量保障

SMF10CA由台湾迪嘉(TWGMC)生产,该厂商专注于保护器件领域多年,产品符合以下质量标准:

  • 环保合规:符合RoHS 2.0、REACH等国际环保指令,无有害物质;
  • 可靠性测试:经过温度循环(-55℃~150℃,1000次)、湿度老化(85℃/85%RH,1000小时)、机械冲击(1000g,0.5ms)等严苛测试,确保长期稳定;
  • 一致性管控:批量生产时参数离散性小,不同批次产品性能一致,便于客户批量应用。

总结

SMF10CA作为一款小型化双向TVS,以10V截止电压、17V钳位电压、200W峰值功率的核心性能,精准匹配低压电路的瞬态防护需求;SOD-123FL封装兼顾尺寸与可靠性,宽温范围覆盖工业/车载等严苛场景,是消费电子、工业控制等领域平衡防护能力与空间的理想选择。

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